What do many deep water organisms use for feeding and the attraction of mates?
a. Keen eyesight
b. Bioluminescence
c. Sense of smell
d. Electrical impulses
ANS: B
Many deep water organisms use patterns of bioluminescence for a variety of purposes. They can
attract prey while hiding their own shadow in the darkness. Also, there are organisms that flash
particular patterns in an effort to attract a mate. Information can be found in the section Examples of
Marine Communities.
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